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ThearchyHelios
59 lines
2.6 KiB
Python
59 lines
2.6 KiB
Python
"""应用级权限（§3.12）：use 能用（入口、视图、自己的实例）；observe 另能看全部实例；manage 能搭建、发布、授权、管钩子。
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- 关登录：全部放行，等同 manage（界面上挂横幅说明，签批人是自报的署名）；
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- admin：所有应用 manage；
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- builder：所有应用至少 observe（能用、能看全部实例）；自己建的、或者有 manage 授权的才 manage；
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- user：按授权（给本人、给所在的组、给所有人）取最高的那一档，最高到 observe：搭建、发布、绑定岗位、授权、钩子、按草稿
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预览、改派催办都不给 user 角色（§3.12），授给它的 manage 按 observe 算。没有授权就看不到这个应用。
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"""
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from __future__ import annotations
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from typing import Any
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from sqlalchemy import select
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from sqlalchemy.ext.asyncio import AsyncSession
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from app.api.deps import Principal
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from app.db.models_apps import AppGrant
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RANK = {"use": 1, "observe": 2, "manage": 3}
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def at_least(role: str | None, need: str) -> bool:
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return RANK.get(role or "", 0) >= RANK[need]
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def granted_role(principal: Principal, grants: list[Any]) -> str | None:
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"""授权里这个人能拿到的最高一档。"""
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best: str | None = None
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groups = set(principal.groups)
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for g in grants:
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hit = (g.principal_kind == "everyone"
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or (g.principal_kind == "user" and principal.username and g.principal == principal.username)
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or (g.principal_kind == "group" and g.principal in groups))
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if hit and RANK.get(g.role, 0) > RANK.get(best or "", 0):
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best = g.role
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return best
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def role_of(principal: Principal, app: Any, grants: list[Any]) -> str | None:
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if principal.mode == "off" or principal.role == "admin":
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return "manage"
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granted = granted_role(principal, grants)
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if principal.role == "builder":
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if app.created_by and principal.username and app.created_by == principal.username:
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return "manage"
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return granted if at_least(granted, "manage") else "observe"
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return "observe" if at_least(granted, "manage") else granted
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async def grants_of(session: AsyncSession, app_id: str) -> list[AppGrant]:
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return list((await session.execute(select(AppGrant).where(AppGrant.app_id == app_id)
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.order_by(AppGrant.created_at))).scalars())
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async def app_role(session: AsyncSession, principal: Principal, app: Any) -> str | None:
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if principal.mode == "off" or principal.role == "admin":
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return "manage"
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return role_of(principal, app, await grants_of(session, app.id))
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